Which of the Following Is an Example of an Efficiency

Multiple Choice

Which of the following is an example of an efficiency wage?

A) a high wage paid to compensate for dangerous work such as coal mining
B) an above-equilibrium wage offered by a firm to attract a more talented pool of job applicants
C) a wage below the minimum wage but supplemented by customer tips
D) a high wage paid to a college graduate for a high-skill job such as electrical engineering